Improvement in loom



`fateci 'ffimn Y *Maw y *MW GEORGE CROMPTON, OF WORCESTER,MASSACHUSETTS.

*Letters Patent No. 85,432, dated December 29, 1868.

IMPROVEMENT IN LOOM..

To all 'whomvit mycoucem;

Be it known that I, GEORGE ORoMP'roN, of Wor cester, in the county ofWorcester, and State of Mas# sachusetts, have invented .an Improvementin Looms; and I do hereby declare that the following, taken inconnection with the drawings, which accompany and form part of thisspeciication, is a description of my inventin, sulficient to enablethose skilled in the art to practise it.

My invention has reference to the z trrangement of angular lifter,depresser, and 'evener-levers of -fancy looms; and

The invention consists in pivoting the evener-levers upon' stationaryfulcra, and connecting the lifterand depresser-levers to such pivotedlevers by links, so as to produce a parallel movement between eachevener, and the litter or depresser with which it is connected, theeyener-levers and lifter and depresser-levers being connected at theirouter ends to slide-rods, by which they are actuated.

The drawing represents aloom or loom-frame, with my improvementembodied'thereupon.

A shows an end view ofthe-loom;

B, a plan, and

C, an end view ofthe levers and lever-mechanism.

a denotes the frame.

y b b, the upper and lower harness-levers, between the outer ends ofwhich the hooked jacks c are hung, the jacks being shown as jointeddirectly to the upper levers b, and `strung to the lower ones. p

These jacks are distributed after each successive change of the shed bya pattern-chain or cylinderd,.

and theyare raised and lowered, to form the shed, by a lifter-lever, e,and a. depresser-lever, j', which are' hung to rise and fall angularly,and are connected to and derive their motion from' slide-rods g,actuated by cranks at the end of the lathe-shaft.

After each formation of shed and throw of the shuttle, the jacks arereturned to or towards their normal position, and as they complete thisreturn-movement, they are clamped between angular evener-levers-h i,which are hung on stationaryt'ulcra 7c, or to a stationaryfulorum-plate, and are jointed at their opposite ends to and arereciprocated by the slide-rods g.

While the outer ends of the lifter and depresserj levers, and the outerends of the 4evener-levers are inner ends of the lifter anddepresser-levers, in order to have movements coincident-with the lifterand depresser-levers, are jointed to such evener-levers by links l, thelevers e fbeingV made short, and having their ends moving in guide-slotsin a plate, m,'thereby obtaining a coincident movement of each lever, for g, with the corresponding evener-lever, Wi'thut extend-y ing thelifter and depresser-levers out'to the same length as the levers h e',to be hung. at their ends on stationary fulcra, the same as are suchlevers h c'. l

Now,in some looms having' angular lifter andA (ie-- presser-levers,there have been employed angular' or vibrating lifter anddepresser-level's, pivoted on fulcra in the clothamaking plane, andshort evener-levcrslinked to and' so as to move coincident with suchpivoted lifter and depresser-levers, both sets of levers being actuatedfrom slide-rods, as shown here.

But such an arrangement'involved the necessity of projecting the lifterand depresser-levers out over and .near the drop-boxes, and theirproximity thereto interfered. with the removal of the shuttle-boxes forrepairs, the standards for supporting the'pivoted ends of the levershaving to be removed, to effect 'the removal ofthe boxes, and to remedythis defect, I project the evenerlevers outfto the cloth-making plane,andpivot l them there to a standard or fulcrum-plate,- as shown,

and then make the lifter and depresser-levers short," and connect themby links to the evener-levers, thus A leaving all the space clear belowthe eveners, or be tween them and the boxes, thus allowing the boxesness-jacks, substantially as set forth.

GEO. OROMPTON.

.Witnessesz l HORACE WYMAN, J. A. WARE.

